Mention that zlib is now builtin on Windows.
diff --git a/Misc/NEWS b/Misc/NEWS
index 2a24e6d..a0d04e2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -631,6 +631,9 @@
 Build
 -----
 
+- The sources of zlib are now part of the Python distribution (zlib 1.2.3).
+  The zlib module is now builtin on Windows.
+
 - Use -xcode=pic32 for CCSHARED on Solaris with SunPro.
 
 - Bug #1189330: configure did not correctly determine the necessary